US2718764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating system with hot gas defrosting means
Assignee: MERCER ENGINEERING Co
•
Filing: 1953-10-27
•
Granted: 1955-09-27
•
Expires: 1973-10-27
Abstract
No abstract record available.
Inventors
- 👤 Kramer Israel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:28
CPC Classifications
F; F25; F25B; F25B47/00; F25B47/02; F25B47/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US121888A
Cited
US2217702A
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US2323511A
Cited
US2530440A
Cited
US2554848A
Cited
US2637983A
Cited
US2641908A
Cited
US2701455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |